<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        body {
            margin: 0;
            height: 100%;
            background-color: #b2bec3;
        }

        .container {
            position: relative;
            margin: 50px auto;
            width: 1000px;
            height: 640px;
        }

        .banner {
            position: absolute;
            padding: 0;
            height: 200px;
            width: 100%;
            box-sizing: border-box;
            color: white;
            line-height: 200px;
            text-align: center;
            text-transform: uppercase;
            font-size: 50px;
            letter-spacing: 5px;
            animation: popup .5s linear;
        }

        .banner:nth-of-type(1) {
            top: 0;
            background-color: skyblue;
            animation-delay: .1s;
        }

        .banner:nth-of-type(2) {
            top: 220px;
            background-color: greenyellow;
            animation-delay: .2s;
        }

        .banner:nth-of-type(3) {
            top: 440px;
            background-color: hotpink;
            animation-delay: .3s;
        }

        @keyframes popup {
            0% {
                left: -100%;
            }

            70% {
                left: 20%;
            }

            100% {
                left: 0;
            }
        }
    </style>
</head>

<body>
    <div class="container">
        <div class="banner">popup!</div>
        <div class="banner">popup!</div>
        <div class="banner">popup!</div>
    </div>
</body>

</html>